How do black holes move, as quantum objects or as classical objects?

TL;DR

This paper applies a recent quantum-classical transition criterion to black holes, suggesting smaller black holes behave quantum mechanically while larger ones behave classically, with a specific size threshold based on cosmic effects.

Contribution

It introduces a new criterion for quantum versus classical behavior applied specifically to black holes, linking their motion to size and cosmic expansion effects.

Findings

Smaller black holes exhibit quantum behavior in their motion.

Larger black holes exhibit classical behavior in their motion.

The transition occurs at a Schwarzschild radius comparable to a nucleon.

Abstract

Results of a recent study of the transition between quantum and classical behavior are applied to black holes. The study led to a criterion separating quantum from classical behavior on the basis of mass or size, dependent on local effects of cosmic expansion. Application of this criterion to black holes indicates that the motion of smaller black holes will be characteristically quantum mechanical, while the motion of larger black holes must be classical, with a threshold distinguishing these behaviors at a Schwartzschild radius of roughly the size of a nucleon.